Use when researching competitor ad creatives: find competitors, brand IDs, evergreen winners, breakout winners, pattern analysis.
Use when generating Word documents (.docx). Uses the marble_docx API.
Use when generating PDF documents. Uses the marble_pdf API.
Use when generating PowerPoint presentations (.pptx). Uses the marble_pptx API.
Use when generating Excel workbooks (.xlsx). Pandas + openpyxl patterns for multiple sheets, number formats, freeze panes, formulas.
Use for any GA4 query whose result will be reported back to the user. Covers conversions ≠ transactions distinction, channel-subset-sum trap with sessionDefaultChannelGroup, intraday partial-data discipline, Paid Social aggregation rules, API-vs-UI attribution mismatch.
Use when creating a Google Ads ad group. Loaded after the create master skill.
Use when creating a Google Ads ad (RSA, expanded text, etc.). Loaded after the create master skill.